Abstract: Systems and methods are described for time synchronization and message scheduling among network elements involving wireless nodes, data controllers, and a network manager. The network manager provides configuration information for the data controllers and the wireless nodes. The wireless node includes a timing circuit with a duty cycle which is initially configured based on the configuration information. Subsequent to the initial configuration, the network manager schedules polling requests for the data controller to transmit to the wireless nodes based on a time at which sensor data is received from the wireless nodes, thereby correcting for timer drift.

Abstract: Embodiments of the invention include techniques for implementing a network security framework for wireless aircraft communication, where the techniques include receiving a key index sequence over a first communication link, and transmitting a subset of the key index to one or more nodes. The techniques also include generating a random encryption key based at least in part on the subset of the key index sequence, encrypting data using the random encryption key, and transmitting the encrypted data over a second communication link.

Abstract: Embodiments of the invention include techniques for implementing a network security framework for wireless aircraft communication, where the techniques include receiving a key index sequence over a first communication link, and transmitting a subset of the key index to one or more nodes. The techniques also include generating a random encryption key based at least in part on the subset of the key index sequence, encrypting data using the random encryption key, and transmitting the encrypted data over a second communication link.